Seal for steam-radiators.



J. L. JUDGE.

SEAL FOR STEAM RADIATORS.

APPLICATION man SEPT. 2, 19.13.

L l 4, 35.. Patented Apr. 6,1915.

` WWW THE NoRRls PETERS Co.. PHoTO-LrTH 1 wASHlNGrON. n. L

FFTCE.

JAMES L. JUDGE, OIF MINNEAPOLIS, MINNESOTA.

SEAL FOR STEAM-RADIATORS.

Application filed September 2, 1913.

T0 all whom it may concern h Be it known that I, JAMES L. JUDGE, citizenof the United States, and a resident of Minneapolis, Hennepin county,Minnesota, have invented certain new and useful Tmprovements in Sealsfor Steam-Radiators, of which the following is a specification.

My invention relates to steam radiators having supply and return pipes.

The object of the invention is to provide a seal in the return pipewhich will allow the water of condensation to be drawn out of theradiator without the use of the ordinary air valve generally employed insteam radiators.

A further object is to provide a seal which will allow the radiator todischarge the water of condensation and accumulation of air without thepounding frequently incidental to the discharge of the water from aradiator.

Other objects of the invention will appear from the following detaileddescription.

:My invention consists generally in various constructions andcombinations, all as hereinafter described and particularly pointed outin the claims.

In the accompanying drawings forming part of this specification, Figure1 is a side elevation of a steam radiator embodying my invention, Fig. 2is a detail sectional view of the seal or trap, Fig. 3 is a sectionalView on the line xof Fig. 2.

In the drawing, 2 represents a radiator of any ordinary or preferredtype, having a steam supply pipe 3, and i is a casing having a verticalsocket 5 for a nipple 6 which communicates with the last section of theradiator, and a similar horizontal socket 7 for the return pipe 8 whichpreferably extends under the radiator, as usual in fittings of thiskind. A plug 9 is tapped into the lower end of the casing 4L concentricwith the nipple 6 and having an outer surface adapted to receive awrench, and provided with a tube 10 preferably formed integrally withthe plug and having a tapered upper end 11 to iit a seat 12 formed onthe interior of thek casing. This tube extends downwardly in the casing,preferably to a point below the level of the pipe 8, and it is providedwith a series of ports 13 which form communieating passages leading fromthe radiator and the interior of the tube into a space between said tubeand the wall of the casing which communicates with the return pipe 8,

Specification of Letters Patent.

Patented apr. e, i915.

Serial No. 77,628.

so that the water of condensation collecting in the radiator and flowingout through the nipple 6 is compelled to pass down through the tube 10and out through the ports 13 before reaching the return pipe 8. Theports 13 being below the level of the return pipe, the water ofcondensationcollecting within the casing and the tube submerges theseports and forms a seal, thereby preventing the steam from flowing fromthe radiator into the return pipe.

A baffle 14 is provided within the casing, extending upwardly andpartially across the opening to the pipe 8, thereby compelling the waterto rise within the casing above the ports 13 and flow over the baflie111 before entering the return pipe. This baffle is also preferablyprovided with a small port 15 through which any water of condensationwhich may accumulate in the casing may escape slowly from said casingand flow into the return pipe. There will always be slow escape of waterfrom the casing through the port 15 into the return pipe 8. This will beso slow that ordinarily the water of condensation will accumulate in thecasing to such an extent as to flow over the top of the baille 141,thereby forming a seal in the casing, but when the water of condensationceases to accumulate, or accumulates very slowly, the escape through theport 15 will be sufficient to lower the water in the casing to the upperedges of the ports 13, which are substantially on a level with the smallport 15. The small amount of water that will remain in the casing cannotdo any harm, even if it is frozen in said casing, whereas, if the waterwere permitted to remain in the casing to the height of the top of thebaffle 14, and this larger amount of water became frozen, it mightinjure the casing. The removal of the plug 9 allows access to the port15 in the casing, should it become clogged. The upper end of the tube 10forms a close joint with the seat 11, and near this seat I prefer toprovide a comparatively small port 16, which will allow the airaccumulated in the radiator to pass down through the return pipe abovethe water of condensation therein. This port will also allow the passageof a very small volume of steam, suliicient only to insure the desiredcirculation of steam in the radiator.

In the operation of the radiator, the water of condensation will flowinto the casing 4: and pass out through the ports 13 and rising abovethe baiiie 14 will pass 0E through' "the" return pipe. Asuiiioientaniont ofw'ati will remain in the bottom of the casing to forma seal at that point and'prevent"the discharge of steam through thereturn pipe," while as Vfast asithe'water aocui'n'ulatesin y theradiator,'it-will be trappedout and carried oft through thereturn pipe.As hereinbefore explained, there will'- always bea sinall'flow ofwaterjthrough'fthe port 15, and when 'the water'is not accumulating inYthe easing,I or is' aeeumulatingjf veryy slowly, the escape throughrthepbrtl l5 will bey sufficient to lowerfthewater in the easing to'ythe level" Lof f theport 15, thereby leaving onlya lsmall amountofwater in thefbottoin oft-liew easing, which will notharm theoas-4 inginoase'it beeo'mes frozen therein.Y` Any;

Y radiator 'and an opening-mits jsidewall eonnebted with said'- returnpipe, means ,iny the lower portion -of'said lcasing.fortra-p'fping"the-wa'ter of condensation-fromsaid radiator, saidmea-nshaving a port ylocatednear thefupper-nportion o-said-easing for thepassage o'i'f air ronrsaid radiator into said return pipe. i f

2'; The combination',Y with a radiator-'anda return' pipe"` therefor,:of a vcasing having 'an` open upper en'deon-neoted with the radiatoranda side-opening eonnectedvvith said re' turnpipe, a'tub'earranged'in-said'oasin'g having a'- comparatively" large opening initslower portion forl thepas'sage of waterl of condensation fromsaid tubet'o said `return? pipe', and 1a Icomparatively small rope'ni-ngr in itsupper portion' for' the passage off-air;` said easing having aftrap?forv oolleotiirg thewater of condensation 'and sealingsaid large' yopzening-againstthe passage of steamy' 3. f The `combination,` with aradiator and areturn pipe therefor, of aeasing having Y its? uppery"e"'d'eoin'ted'- with said radiator and a side wall Connection withsaid return Wi'thlsaid radiator and'forming a elose'ljointwithsaidbasingabove said return pipe,

said tube having ports in Vits lowerwalls sation aeeumulates aroundsaidtube. and seals said ports agamstthe passage ofsteam fromr`Saidradiator; the upper portion of Vpipe,a'tubef'arranged in said easingand having an open upper end eommuniating leading from said radiator tosaid return? e pipe, said ports being'be'low zthe level of said AVreturnpipe, wherebyth'e water of condensaid tubehavinga-oemparativelyismallport Y for'th'e passage of air romsaid-radiator l into' the upperportionof said return pipe. i" 4L.- The combinatiomwith a radiator andrturnf-pipef therefor, -of a casing inter-V l posedinsaid return` pipe,a pluggremovably fitting;y within sai-d l easing, a Atubef mounted onsaidfpl'ug-andfseated at yoneend in said Casing and communicating withsaid -radiator; vthe lower 'portion ofsaid tube having ports thereinvleading from said-'radiator to saidreturnpipe and below the Ylevel ofsaid return Ipipe, the water of 'condensation Vaeeumula-ting around saidports-i and fsealingJA them against the passage of steamrfroni saidradiator',- theupper-'portion- Aoi said tube having-acomparativelysmallpofrt therein for'the passage oi?A air-f from said radiator to-saidre'turnpiper` Y v l 5.- The ooinbinatiomwith a radiatorfand areturn pipe therefor, ofa casing` inter-V posed-in said-return-pipe,a-plug tapped into saidasing," af-tube 'mounted Von saidplug-andoommunieating at one endfvvith said-radiatorandha-vingv-portsfin iter-lowerV walls-v leadingA from said'v radiatorto f said return pipe, said portslbeing` belowAY the leveloi"saidgreturn-pip.e, and albale extend-` ing:r partially'racross vsaid'return pipe betweenfit andl saidtube and having-a port A Y there-in,-substantially level with the. ports insa-idtube. y Y j Y 'In'f witnesswhereof, lfhavehereuntov set myhandthis Qthd-ayV of August, 1913.v

Janus .when 'eV Witnesses:- v

EmvAtm-A.-11j-Aun,-y .y Y GENEVIEVE Ef-SORENJS'EN. Y

Washington; 15ML,

